if car 1's purchase price is x, then 20000 -x is the profit from the first car (equaling 25% of x); thus, x + 25% of x = 20000 and so x = 16000 if car 2's pruchase price is y, then y - 20000 is the loss from the second car (equal to 20% of y) and so y - 20% of y = 20000 and thus y = 25000 the dealer...